![]() Method and apparatus for processing together various finger printer sensors and a recording medium p
专利摘要:
PURPOSE: An apparatus and a method for identifying fingerprint capable of integrating and processing various fingerprint identification sensors and a recording media capable of being read from a computer in which a fingerprint identification program is recorded are provided to integrate and process various fingerprint identification sensors by providing an image conversion unit capable of converting fingerprint image collected into regular images regardless of sorts of the fingerprint identification sensors. CONSTITUTION: An input device(21) receives source fingerprint images transmitted from various fingerprint identification sensors(20). An image conversion unit(22) converts the source fingerprint images into regularized images. A characteristic sampling unit(23) performs a sampling of a fingerprint among the regularized images of the image conversion unit(22). A characteristic comparison unit(25) compares characteristics of the fingerprint with data stored. A control unit(24) controls whole processes and manages data on a user's registration fingerprints. In addition, the control unit(24) transmits the characteristics to the characteristic comparison unit(25). 公开号:KR20020004537A 申请号:KR1020000038534 申请日:2000-07-06 公开日:2002-01-16 发明作者:박경희 申请人:(주)넥사인; IPC主号:
专利说明:
Fingerprint reader and method for integrating various fingerprint sensors and computer-readable recording media recording fingerprint recognition program. [12] The present invention relates to a fingerprint recognition device, and in particular, it is possible to integrate all collected fingerprint images regardless of the type of fingerprint recognition sensor, various fingerprint recognition sensors that can be effectively applied to a fingerprint inquiry service using an application device or a network communication network. The present invention relates to a fingerprint recognition device for integrated processing, a method and a computer readable recording medium recording a fingerprint recognition program. [13] Conventionally, the fingerprint recognition apparatus is largely divided into a method using an optical and a method using a semiconductor. In general, a fingerprint recognition device includes a fingerprint input sensor for obtaining a fingerprint image of a finger, a feature point extractor for extracting a feature point from the fingerprint image, and a checker for comparing the acquired fingerprint feature points to confirm whether the fingerprint is the same. [14] Therefore, such a fingerprint recognition device scans an image of a fingerprint by directly applying a fingerprint on a human finger to a fingerprint input sensor such as a scanner to find a feature point of the fingerprint image through a feature point extractor and determine whether the fingerprint image is the same as the fingerprint image set by the contrast unit. do. [15] On the other hand, the current fingerprint input sensor generates different fingerprint images (e.g., resolution, image size, color depth, distortion rate, etc.) for each manufacturer due to hardware characteristics, of course, fingerprint recognition device according to the characteristics of the scanned image in the fingerprint recognition device Extraction and control also differ in function. [16] However, a developer that provides an application device (including an application program) or a service (internet or communication use) using a fingerprint recognition technology has difficulty in development because a commercialized fingerprint recognition device is not uniform. [17] Therefore, these applications or service providers cannot support / compatible all of the commercially available fingerprint input sensors, and therefore cannot scan all the formats of the scanned fingerprint image. There was a problem that fingerprint recognition processing or fingerprint inquiry service could not be performed according to the image. [18] An object of the present invention to solve the problems of the prior art as described above fingerprint recognition for integrating a variety of fingerprint recognition sensors by having an image conversion unit for converting the collected fingerprint image back to a constant image regardless of the type of fingerprint recognition sensor To provide a device. [19] Another object of the present invention is to remove the hardware characteristics from the various fingerprint images having the hardware characteristics of the sensor input from the fingerprint input sensor to convert to a normalized image and extract the fingerprint feature points therefrom and By contrasting feature points, all fingerprint images collected can be integrated regardless of the type of fingerprint sensor, providing a fingerprint recognition method that integrates various fingerprint recognition sensors that are effective for fingerprint inquiry services using applications or network communication networks. do. [20] Still another object of the present invention is to provide a computer-readable recording medium recording a fingerprint recognition program capable of integrating all collected fingerprint images regardless of the type of fingerprint recognition sensor. [21] In order to achieve the above object, the apparatus of the present invention provides an input device for receiving a source fingerprint image transmitted from various fingerprint recognition sensors and different source fingerprint images of various fingerprint recognition sensors inputted through the input device into a normalized image. An image converter for converting, a feature point extractor for extracting the feature points of the fingerprint from the normalized image of the image converter, a feature point contraster for comparing the feature points of the fingerprint extracted from the feature point extractor with the prestored feature point data, and an image Request the normalized image to the converter, send it to the feature extraction unit, send the feature point of the fingerprint extracted from the feature extraction unit to the feature matching unit, and then compare the fingerprint feature with the stored data through the feature matching unit. It is provided with a control unit for determining whether or not. The. [22] In the apparatus of the present invention, the communication unit for transmitting any one of the normalized image of the image conversion unit, the feature point of the extracted fingerprint of the feature point extraction unit, the result of the collation of the feature point matching unit at the request of an application device connected to the outside, or a terminal of the network And display means for notifying the result of the controller. [23] In order to achieve the above object, another apparatus of the present invention is a normalized image of different source fingerprint images of an input device receiving a source fingerprint image transmitted from various fingerprint recognition sensors and various fingerprint recognition sensors input through the input device. A client terminal having an image converting unit for converting the image into a plurality of points, a feature point extracting unit extracting a feature point of a fingerprint from the normalized image of the image converting unit, and a controller for requesting the normalized image to the image converting unit and transmitting the normalized image to the feature point extracting unit; A feature point extractor for extracting a feature point of a fingerprint from a normalized image connected to a network and connected to a client terminal, a database storing the normalized image of the fingerprint, the feature point of the fingerprint and user information, and a feature extractor of the client. The feature point collator comparing the feature point data of the fingerprint extracted by the extracted feature point or the own feature point extractor and the feature point of the fingerprint extracted from the client terminal or the feature point extractor of the client terminal to the feature point collator And a control unit for notifying the client terminal of a result of comparing the feature point data of the fingerprint with the stored feature point data. [24] In order to achieve the above object, the method of the present invention includes the steps of receiving a source fingerprint image transmitted from various fingerprint recognition sensors, converting different source fingerprint images of the various fingerprint recognition sensors input into a normalized image; Extracting a feature point of the fingerprint from the normalized fingerprint image, comparing the extracted feature point with the prestored feature point data, and comparing the extracted feature point with the stored data Determining whether or not. [25] In the method of the present invention, the storing of the feature point data in advance may include receiving a source fingerprint image transmitted from various fingerprint recognition sensors and normalizing different source fingerprint images of the various fingerprint recognition sensors. Converting to an image, extracting feature points of the fingerprint from the normalized fingerprint image, collecting user information, and storing normalized images and feature points. [26] In order to achieve the above object, the recording medium of the present invention receives a source fingerprint image transmitted from various fingerprint recognition sensors to a computer, converts it into a normalized image, extracts feature points of the fingerprint from the normalized fingerprint image, After comparing the feature points of the extracted fingerprint with the stored data of the pre-stored point data, the computer can record the fingerprint recognition program to perform the procedure of judging whether or not the user is based on the result of the comparison between the feature points of the extracted fingerprint and the stored data. Characterized in that it can. [1] 1 is a block diagram showing a fingerprint recognition device for integrating various fingerprint recognition sensors according to an embodiment of the present invention, [2] 2 is a flow chart showing a fingerprint recognition processing method of the fingerprint recognition device shown in FIG. [3] 3 is a block diagram showing a fingerprint recognition device for integrating various fingerprint recognition sensors according to another embodiment of the present invention; [4] 4 is a flow chart showing a fingerprint recognition processing method of the fingerprint recognition device shown in FIG. [5] <Description of the code | symbol about the principal part of drawing> [6] 10: various fingerprint recognition sensors 20: fingerprint recognition device [7] 21: input device 22: image conversion unit [8] 23: feature point extraction unit 24: control unit [9] 25: feature point contrast unit 26: DB [10] 27: display unit 28: communication unit [11] 30: Application device [27] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. [28] 1 is a block diagram illustrating a fingerprint recognition device for integrating various fingerprint recognition sensors according to an embodiment of the present invention. [29] Referring to FIG. 1, the fingerprint recognition apparatus of the present invention includes an input device 21, an image converter 22, a feature point extractor 23, a controller 24, and a feature point collator 25. do. [30] Here, the input device 21 receives a source fingerprint image transmitted from various other fingerprint recognition sensors 20 by manufacturer (eg, A company, B company, C company). Although the fingerprint input sensor has different hardware characteristics for each manufacturer, the input device 21 has an interface compatible with input / output devices of various fingerprint input sensors. [31] The image conversion unit 22 converts different source fingerprint images of various fingerprint recognition sensors input through the input device 21 into a normalized image of a unified format in which different hardware characteristics are removed for each sensor. In general, various fingerprint sensors include hardware features such as different resolutions (horizontal and vertical), color depth, and distortion rate. Accordingly, the fingerprint recognition apparatus of the present invention collects and manages characteristics of various fingerprint recognition sensors to convert the hardware characteristics of the connected fingerprint recognition sensor 10 into numerical values, and the hardware characteristics of each sensor in the normalized image conversion unit 22. Remove it. That is, the image conversion unit 22 of the present invention uses the source fingerprint image and the hardware characteristic information of the sensor, and through the various image filtering and image processing, the normalized image having a uniform resolution and color depth and distortion correction Convert to In addition, the feature point extractor 23 processes the quality of the normalized image generated to extract the correct feature point into a clear high quality image through various processes. [32] The feature point extractor 23 extracts a feature point of a fingerprint from a normalized image of the image converter 22. Human fingerprints usually consist of ridges, which have endpoints called start points or end points, and where ridges meet or diverge. These points are called feature points and appear differently on different fingers. Therefore, the feature point extracting unit 23 of the present invention collects the position and direction of these feature points in the form of a vector in the fingerprint and finds the information of the ridges (center point, delta, density, number, etc.) related together. [33] The feature point collating unit 25 compares the feature points of the fingerprint extracted by the feature point extracting unit 23 with the previously stored feature point data. That is, the feature point of the registered fingerprint is compared with the feature point of the inquired fingerprint, and the similarity is calculated. [34] The controller 24 controls the overall processor of the fingerprint recognition device and manages the registered fingerprint data of the user. Accordingly, the controller 24 requests the normalized image from the image converter 22, transmits the normalized image to the feature point extractor 23, and transfers the feature points of the fingerprint extracted from the feature point extractor 23 to the feature point contrast unit 25. After the transmission, the personality checker 25 determines whether the user is based on the result of the comparison between the fingerprint feature and the stored data. [35] Fingerprint recognition device of the present invention is an application device connected to any one of the normalized image of the image conversion unit 22, the feature point of the extracted fingerprint of the feature point extraction unit 23, the result of the collation of the feature point matching unit 25 ( 30) or a communication unit 28 for transmitting at the request of the terminal of the network. In addition, it further includes a display means 27 for notifying the processing result of the control unit 24. [36] In addition, the fingerprint recognition device 20 of the present invention includes a normalized image and a feature point extraction unit, and a database 26 (DB) for managing the matching result and the user information. [37] FIG. 2 is a flowchart illustrating a fingerprint recognition processing method of the fingerprint recognition device shown in FIG. 1. Referring to this, an operation of the fingerprint recognition device according to an embodiment of the present invention shown in FIG. 1 will be described. [38] First, the fingerprint registration process of the fingerprint recognition device of the present invention is as follows. When a user inputs a fingerprint through the fingerprint recognition sensor 10, the source fingerprint image scanned by the corresponding fingerprint recognition sensor 10 is transmitted to the fingerprint recognition device 20. (S10 to S11) [39] The transmitted source fingerprint image is received by the input device 21 of the fingerprint recognition device 20 and converted back to a normalized image through the image conversion unit 22. Then, the feature point extractor 23 extracts the feature points of the fingerprint from the normalized fingerprint image. (S12 to S13) [40] Then the fingerprint recognition device 20 collects the user's information and stores the normalized image and feature points in the DB. (S14 to S15) [41] In addition, in the fingerprint inquiry process of the fingerprint recognition device of the present invention, when a user inputs a fingerprint through the fingerprint recognition sensor 10, the source fingerprint image scanned by the corresponding fingerprint recognition sensor 10 is transmitted to the fingerprint recognition device 20. do. (S20 to S21) [42] The transmitted source fingerprint image is received by the input device 21 of the fingerprint recognition device 20 and converted back to a normalized image through the image conversion unit 22. The feature point extractor 23 then extracts the feature points of the fingerprint from the normalized fingerprint image. (S22-S23) [43] Then, the fingerprint recognition device 20 compares the feature points of the fingerprint extracted through the feature point collation unit 25 with the previously stored feature point data, and stores the feature points of the extracted fingerprint compared with the feature point collation unit 25. The display unit 27 or the application device 30 is notified of the result of the identity based on the comparison result with the data. (S24) [44] Therefore, the fingerprint recognition apparatus according to the present invention extracts the feature points from the normalized image by changing the fingerprint images of the various fingerprint input sensors back to the normalized image through the image conversion unit 22 and the extracted feature points and the preset feature points. By verifying identity by verification, all fingerprint input sensors with different hardware characteristics can be supported / compatible. [45] 3 is a block diagram illustrating a fingerprint recognition device integrating various fingerprint recognition sensors according to another exemplary embodiment of the present invention. [46] Referring to FIG. 3, another embodiment of the present invention relates to a fingerprint recognition device including a client terminal 100 and a server 120 connected to a network communication network 110. Here, the various fingerprint input sensors 10 use the same reference numerals as in FIG. 1. [47] Accordingly, in the fingerprint recognition apparatus of the present invention, the client terminal 100 includes an input device 101, an image converter 102, a feature point extractor 103, and a controller 104. [48] In addition, the server 120 of the present invention includes a feature point extracting unit 121, a database 124 (DB), a feature point matching unit 123, and a control unit 122. [49] 4 is a flowchart illustrating a fingerprint recognition processing method of the fingerprint recognition device shown in FIG. 3. Referring to this, an operation process of the fingerprint recognition device of the present invention will be described below. [50] First, when the server 120 requests the fingerprint feature data or the fingerprint image for the identification from the client terminal 100 side, the client terminal 100 uses an application program and the user through the installed fingerprint input sensor 10. As described above, the fingerprint is converted into a normalized fingerprint image from which the hardware characteristics of the sensor are removed through the image converter 102, and the feature points are extracted from the normalized fingerprint image through the feature point extractor 103. (S30-S33) [51] Next, the controller 104 determines whether the feature point extractor 103 of the client terminal 100 is compatible with the feature point extractor 121 of the server 120. If there is compatibility, the feature point of the fingerprint extracted by the feature point extractor 103 of the client terminal 100 is transmitted to the server 120 through a network. Then, the control unit 122 of the server 120 determines whether or not the identity by comparing the feature point of the fingerprint received through the feature point matching unit 123 with the feature point of the fingerprint registered in the DB (124). (S34, S36) [52] On the contrary, if the feature point extractor 103 of the client terminal 100 is not compatible with the feature point extractor 121 of the server 120, the client terminal 100 may convert the normalized fingerprint image of the image converter 102. Send to server 120. Accordingly, the server 120 receives the normalized fingerprint image, and the controller 122 instructs the feature point extractor 121 to extract the feature point from the received fingerprint image. The feature point extractor 121 extracts the feature point of the fingerprint image by itself and checks the fingerprint of the user by comparing the feature point of the fingerprint registered through the feature point checker 123 with the feature point of the fingerprint registered in the DB 124. . (S35-S38) [53] Meanwhile, the recording medium of the present invention receives a source fingerprint image transmitted from various fingerprint recognition sensors to a computer, converts it into a normalized image, extracts a feature point of the fingerprint from the normalized fingerprint image, and previews the feature point of the extracted fingerprint in advance. The computer may read a fingerprint recognition program for performing a procedure of determining whether the user is based on a result of comparing the extracted feature points with the stored data after comparing the same with the stored feature point data. [54] As described above, according to the present invention, the feature of the fingerprint is extracted after removing the hardware characteristic from the various fingerprint images having the hardware characteristic of the sensor input from the various fingerprint input sensors and converting the image into a normalized image. The user's identification is determined according to whether the stored feature point data and the extracted feature point are the same. [55] Therefore, an application device (or application program) and a service (Internet business using a network) to which the fingerprint recognition device of the present invention is applied can support / compatible all of the commercially available fingerprint input sensors, so that the fingerprint image scanned through the fingerprint input sensor can be used. All forms of can be unified. Accordingly, the accuracy of the fingerprint recognition rate due to the use of different fingerprint readers can be prevented from being deteriorated, and the existing fingerprint input sensors can be continuously used, thereby reducing the waste of resources due to the standardization of the new fingerprint reader. [56] On the other hand, the present invention is not limited to the above-described embodiment, various modifications are possible by those skilled in the art within the spirit and scope of the present invention described in the claims to be described later.
权利要求:
Claims (6) [1" claim-type="Currently amended] An input device for receiving a source fingerprint image transmitted from various fingerprint recognition sensors; An image converter converting different source fingerprint images of various fingerprint recognition sensors input through the input device into a normalized image; A feature point extraction unit for extracting feature points of a fingerprint from the normalized image of the image conversion unit; A feature point checker for comparing a feature point of the fingerprint extracted by the feature point extractor with the previously stored feature point data; Request the normalized image to the image converting unit and transmit the normalized image to the feature point extracting unit and transmit the feature point of the fingerprint extracted from the feature point extracting unit to the feature point collating unit, and then compare the fingerprint feature point with the stored data through the feature point collating unit. Fingerprint recognition device for integrating a variety of fingerprint recognition sensor, characterized in that it comprises a control unit for determining whether or not based on the result. [2" claim-type="Currently amended] The method of claim 1, wherein the database stores the normalized image and the fingerprint of the feature point and the user information, the normalized image of the image converter, the feature point of the extracted fingerprint of the feature point extractor, and a matching result of the feature point checker. A communication unit for transmitting at the request of an application device or a terminal of the network connected to the outside, and a fingerprint recognition device for integrating a variety of fingerprint recognition sensors further comprising a display means for notifying the results of the control unit. [3" claim-type="Currently amended] An input device for receiving a source fingerprint image transmitted from various fingerprint recognition sensors, an image converter for converting different source fingerprint images of the various fingerprint recognition sensors input through the input device into a normalized image, and the image conversion A client terminal having a feature point extracting unit for extracting a feature point of a fingerprint from a negative normalized image, and a control unit for requesting a normalized image to the image converting unit and transmitting the normalized image to the feature point extracting unit; And A feature point extractor configured to extract a feature point of a fingerprint from a normalized image of the image conversion unit, a database storing an image of the normalized fingerprint, a feature point of a fingerprint and user information, and a feature point of the client The feature point checker comparing the feature point data of the fingerprint extracted by the extractor or the feature point data extracted by the self feature point extractor with the feature point checker and the feature point of the fingerprint extracted by the feature point extractor of the client terminal or its own are used as the feature point checker. Fingerprint recognition for integrating various fingerprint recognition sensors, characterized in that it comprises a server having a control unit for notifying the client terminal again the result of comparing the feature point data of the fingerprint and the stored feature point data through the feature point matching unit after the transmission chapter Chi. [4" claim-type="Currently amended] Receiving a source fingerprint image transmitted from various fingerprint recognition sensors; Converting different source fingerprint images of the various input fingerprint recognition sensors into a normalized image; Extracting feature points of a fingerprint from the normalized fingerprint image; Comparing the feature points of the extracted fingerprint with the previously stored feature point data; And And determining whether or not the user is based on a result of comparing the extracted feature point of the fingerprint with the stored data. [5" claim-type="Currently amended] The method of claim 4, wherein the storing of the feature point data in advance comprises: Receiving a source fingerprint image transmitted from various fingerprint recognition sensors; Converting different source fingerprint images of the various input fingerprint recognition sensors into a normalized image; Extracting feature points of a fingerprint from the normalized fingerprint image; And Collecting user information and storing the normalized image and feature point fingerprint recognition processing method for integrating a variety of fingerprint recognition sensors, characterized in that it comprises. [6" claim-type="Currently amended] Receives a source fingerprint image transmitted from various fingerprint sensors to a computer, converts it into a normalized image, extracts a feature point of the fingerprint from the normalized fingerprint image, and compares the extracted feature point with the prestored feature point data. And a computer-readable recording medium having a fingerprint recognition program recorded thereon for performing a procedure of determining whether the user is based on a result of comparing the extracted feature points of the fingerprint with the stored data.
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同族专利:
公开号 | 公开日 KR100384651B1|2003-05-22|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题
法律状态:
2000-07-06|Application filed by (주)넥사인 2000-07-06|Priority to KR20000038534A 2002-01-16|Publication of KR20020004537A 2003-05-22|Application granted 2003-05-22|Publication of KR100384651B1
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申请号 | 申请日 | 专利标题 KR20000038534A|KR100384651B1|2000-07-06|2000-07-06|Method and apparatus for processing together various finger printer sensors and a recording medium providing program therein| 相关专利
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